Adjustable-shackle dolly



Aug. 21, 1928.

W. R. HDGES ADJUSTABLE SHACKLE DOLLY Filed May 21. 1925 Patented Aug.21, 19.28.

UNITED STATES g 1,681,854 PATENT OFFICE.

WILLIAM It. IIoDGEs, or EUPORA, MISSISSIPPI.

ADJUSTABLE-SHACKLE DOLLY.

Application filed May21, 1925. Serial No. 31,888.

This invention relates 'to improvements in adjustable shackle dolliesfor the holding of rivets while the same are being formed.

The primary object of the invention is t-he provision of an improvedmechanical device particularly well adapted for the holding of rivets inplace while the same are being driven and formed, without the atten-dantmanual exertion necessary with conventional dollies.

A further object of the invention is the provision of a rivet holder orjam dolly, embodying a relatively simple and adjustable arrangement ofparts, having a powerful leverage action by means of which very littleinannal exertion is necessary to eliectively hold the rivets in placewhile the same are being driven.

Further objects and advantages of this invention will be apparent duringthe course of the following detailed description.

In the accompanying drawing, forming a part of this speciiication, andwherein similar reference characters designate corresponding partsthroughout the several views.

Figure 1 is a side elevat-ion, partly in section, showing the manner inwhich the improved device is used for holding an upper rivet while thesame is being driven or formed.

Figure 2 is a view showing a further use of the'tool, for the forming ofa lower rivet, using the prior placed upper rivet as a centering meansfor the tool. Y

Figures 3 and 4.4 are cross sectional views taken substantially ontheir' respective lines in Figure 1 of the drawing. In the drawing,wherein for the purpose of illustration is shown only the preferredembodiment of this invention, the letter A may generally designatetheimproved tool, which is adapted to be used in connection with theplacing of rivets for the connection of structural steel forms, such aschannels B, upon any other structural framing C. The improved tool ispreferably adapted to be used in connection with riveting of steelbridge ccnstructiombut may be practicably adapted for use in connectionwith boilers, tanks, and other approved forms of work using structuralsteel framing.

As used in bridge work, the tool linds its most practical adaptation inconnection with the channels B, which as is well known includes theupper and lower flange portions 10 and 11, provided with openings 13 and14 for receiving upper and lower rows of rivets 15 and 16, forconnecting the Vchannels B to the framing C. rlhis is merely by Way ofexample, in order to more clearly illustrate the-'use of the tool A.

Referring to the details of the tool A, the same is relatively simple,consisting of a frame 20; and pivot bars or shanks 21 and 22 adjustablyand pivotally connected with the frame 20.

llhe frame 20 is of any approved metal, preferably steel, and comprisesthe loop shaped shank supporting end 25, having longitudinally extendingsides 27 and 28, preferably in parallel relation, connected forwardly byan end integral therewith, and rearwardly tapering at 30 and 31, intointegral connection with a preferably straight handle 33, which isrounded at its rearhand engaging end 35, as is illustrated in thedrawing. In cross section, the sides and end of the elongated loop arerectangular, and the loop provides the elongated opening 35 therein, foradjustably receiving the rivet bars or Shanks 21 and 22. The sides 27and 28 of the frame loop 25 are'preferably provided with a pair ofaligning openings 37 and 38 transversely therethrough, adjacent the end29, and a second pair of transversely aligning openings 39 and l0 closerto the handle 33, and which pairs of aligning openings are respectivelyadapted to receive pivot pins or members 41 and 42, by means of which topivotally connect the shanks 21 and 22 to the frame 20. The pins 41 and42 each include heads ll adapted for abutment at one of the sides of theloop 25, and at their opposite ends are transversely apertured forreceiving cotter pins l5 whereby to support the said pins in parallelrelation extending across the openin g' 35 of the loop 25, for thepivotal reception of the shanks 21 and 22, as will be apparent.

The shanks 21 and 22 are somewhat identical, each of the same beingpreferably square in cross section, and the same being rugged, and attheir outer ends having rivet head cup recesses 50 and 51 respectively.The shank 21 is preferably provided with a series of longitudinallyextending recesses 54, through which the pin 2 may be selectively placedto connect the shorter shank 21 in the loop 25, with its cup recess 50at a desired spaced relation from the frame 20. In analogous manner theshank 22 is preferably provided with a series of transverse openings 55,adapted to receive the pin 41 for connecting the shank 22 to the frameloop 25, to place its cup recess 51 in a desired spaced relation to theloop 25, and at the opposite side of the plane of the loop 25 from theshank 21, as is illustrated in the drawing. The placing of the pins e1'and 42 is such that the shanks 21 and 22, may be moved into abutment attheir facing side surfaces 58 and 59, as is illustrated-in the drawing;the said shanks at their faces 58 and 59 being slightly spaced at theirsides when at exactly right vangles to the plane of the loop 25, topermit limited play of the handle 83, so

that when the latter is moved into oblique relation to the axes of saidshanks, the latter will be drawn into abutting adjacement attheirsurfaces 58 and 59 for locking the same in a particular lineararrangement. if desired, at the free end adjacent the cup ren cesses and51 the shanks may be tapered, as at 60, to facilitate access of the toolin close quarters.

An important feature of the invention is the provision of a workengaging pin 65, which may suitably be termed a stinger, and which isadapted to be placed in a socket 67 suitably provided axially inwardlyof the recessed' end of the shank 21; said pin 65 having a diametricalpassageway 68 therethrough adapted for alignment with a. way 69extending through the shank 2l, to receive a Cotter pin 70, or the like,by means of which the stinger or pin 65 may be held in place, withitspointed end 72 extending beyond the edge of the shank 21. It is to benoted' that the pin 65 axially extends through the rivet head receivingcup or recess 50 of the shank 21.

Referring more particularly to the use of the tool, the shanks 21 and 22are of course adjustable with respect to the frame loop 25, so thattheir rivet engaging ends may be spaced at a particular distanceaccording to the width of a channel or other structural piece beingworked upon. ln riveting above and below from the flanges of channels,for the fastening of an upper rivet 15, the stinger or pin 65 will restupon the channel iiange below, or any other suitable framing, and therivet 15 is placed in the opening 18, and the lever or handle 33 moveswith respect to the shanks so that the head 75 of the rivet 15 isreceived in the recess 51 of the shank 22, and upon movement of thehandle 33 the Shanks 21V and 22 will be locked together and the rivetforced into place and held in an absolutelyfixed relation so that theoperator may drive-*thehead at the opposite end. After the upper rivethas been placed, the pin or stinger 65 will be removed, and theadjustable dolly turned te an angle of 1800, so that the shank 21 maybeupperinost, and the rivet head recess 50 of the shank 21 is thencentered on the head 7 5 of the upper rivet 15 and the lower rivet 16may be placed, and the tool A moved so that theshank 22 engages the head8O of the lower rivet 16, in the relation shown in Figure 2 of thedrawing, and an operator may drive the head of the rivet 16 on the outerside of the channel.

Vlith the use Yof the improved tool A there is no waste of materials byruining of rivets, and riveting work may be expedited. The improved toolmay be operated by an ordinary person since very little manual exertionis necessary to use the saine.

Various changesin the shape, size, and ar rangement of parts may be madeto the form of invention herein shown and described, without departingfrom the spirit of the same or the scope of the claim.

, claim:

ln a shackle dolly of the class described the comibnation of a handleframe, a pair of shanks, means pivotally connecting the shanks to theframe, each of the shanks at the free end thereof having a rivet headreceiving socket therein, one of said shanks axially therealong andinwardly in communicating relation with the rivet head receiving sockethaving a reduced socket, a work engaging pin having a pointed end, thework engaging pin being adapted to extend into the last mentionedreduced socket, and means for connecting the pin in said reduced socketin detachable relation with the pointed end extendingbeyond the free endof the respect-ive shank. Y

VllJlJIAh/i R. HODGES.

